Fuel deflector



May 31, 1938. F. HOGG 2,119,010

FUEL DEFLECTOR Original Filed April l0, 1955 ATTORNEY Patented May 31, 1938 UNITE. i STATES PATENT omer.

FUEL DEFLECTOR Application April 10,

1935, Serial No. 15,567

Renewed July 9, 1937 9 Claims.

My present invention relates to fuel deflectors for stokers.

The main object is to provide a fuel deflector positioned above the projected fuel and movable bodily vertically and longitudinally with respect thereto.

On the drawing:

Fig. 1 is a longitudinal central vertical section through the rear portion of a furnace and through the delivery end portion of a stoker applied thereto and embodying the fuel deflector of the invention;

Fig. 2 is a plan sectional view of the structure of Fig. l taken on the line 2 2 thereof; and

3 is a transverse vertical sectional view on the line 3 3 of Fig. 1.

Referring to these figures, It represents the vupstanding backhead or firing wall of a furnace and II indicates the ring opening. Fuel is conveyed to the firing opening by the stoker S, only that portion being shown necessary to disclose the novel fuel deflector of the present invention.

The stoker S includes the fuel casing C and the inclined riser conduit R. In the construction as shown, the casing C is mounted on the firing wall I with the discharge outlet I 2 in register with the firing opening Il. A top wall I3 and side walls I t of the casing embrace corresponding portions of the firing opening and the flat bottom wall or oo-r i5 extends into the aforesaid opening directly above the bottom thereof.

The riser conduit R opens upwardly into the casing through that portion of the bottom wall or door i5 rearward of the firing wall I A screw I6 advances the fuel in columnar formation through the riser conduit R into the casing C. There the fuel is projected forwardly through the discharge outlet I2 toward the furnace by pressure fluid blasts directed against the fuel and casing from jet openings I'l in a distributor head or nozzle i8 disposed in any suitable manner in the casing C rearward of and slightly above the discharge end of the riser conduit. The jet openings il are laterally spaced and radially directed to discharge a lplurality of conical shaped pressure fluid blasts in effect merging to form a single fan shaped blast equal in width to the width of the casing at the discharge outlet I2.

An opening 2B in the rear wall of the casing C opposite the discharge outlet l2 is provided for hand firing of fuel into the pressure fluid jet or directly into the furnace and also to afford access to the interior thereof. The opening gli may be closed by any suitable redoor 2|,

In order to deflect and spread the projected fuel over the rebed as it enters the furnace, my present invention provides an improved overhead fuel deflector D. Plate-like members 25 support the deflector D from the side walls I4 of the casing in a position in the firing opening II over and above the fuel projected by the pressure fluid blasts of the nozzle I8. The members 25 extend into the firing opening II to the inside sheet of the ring Wall l0 and are placed in contact with or closely adjacent the side walls of the firing opening. Rearwardly and upwardly inclined slots 26 arranged in parallelism in the side walls I4 of the casing receive the studs 2l threaded in the members 25. By loosening or tightening the nuts 28 on the studs 2l the members 25 may be moved up or down, and also 1ongitudinally by yreason of the inclination of the slots.

Each plate-like member 25 is formed with a longitudinally extending groove 38 open at its rearward end. The grooves are positioned in the same plane and face each other to receive and form guideways for the top plate 3| of the y deflector. The top plate 3| slides loosely in the grooves and extends between the members 25 to form a cover in the firing opening over and above the projected fuel and above the bottom wall or vfioor I5 of the casing C. Each groove 3i) is closed at its forward end and that portion of the top plate 3| extending forwardly into the furnace beyond the grooves is slightly less in width than the portion extending into the grooves, thus per- Vmitting longitudinal movement in the grooves of the deflector D. The position of the deflector in the supporting members 25 may be adjusted longitudinally by changing the setting of the locking pins 32 fitting in the openings 33 and 34 in said members. v

That portion of the top plate 3i extending into the furnace is provided with laterally spaced forwardly and laterally curved depending ribs 35 positioned in the path of the projected fuel to intercept and deflect the fuel to vvarious parts of the furnace. Preferably the ribs 35 are spaced above and somewhat forward of the bottom Wall or floor I5 so that a portion of the projected fuel may pass unobstructed into the furnace.l

Ribs 36 on the upper side of the top plate 3|V prevent warping or sagging of the deflector.

From the foregoing it is believed apparent that deflection of the fuel may be varied or changed to suit the different furnace requirements by bodily adjusting the position of the deflector D vertically and longitudinally with respect to the projected fuel. If preferred it will be seen that the slots 26 could be disposed vertically and all of the longitudinal movement of the Ydeflector provided for in the grooves 30.

I claim:

l. In a stoker, a fuel discharge casing including upstanding oppositely disposed side walls and having a discharge outlet opening forwardly between said side walls and a fuel inlet opening upwardly between said side walls rearward-of said discharge outlet, means delivering-fuel upwardly into said casing through said fuel inlet, pressure uid distributing means disposed at the rearward side of said fuel inlet acting against the fuel to project it from said casing through said discharge outlet, a fuel deflector above the path of the projected fuel having a portion forward of said discharge outlet disposed in the path of the projected fuel, and means supporting the fuel defiector from said side walls of the casing movable to bodily-adjust thefpositionoffthedeflector vertically and longitudinally Withfrespect to the path of the projected fuel.

2..In a stoker, a fuel discharge casing including upstanding oppositely disposed side walls and having a discharge outlet opening forwardly-between said side walls and a `fuel inlet opening upwardly between said side walls rearward of said discharge outlet, means-delivering fuelupwardly into said casing through said-fuel-inlet, pressure fiuid distributing means disposed at the rearwardy side of said fuel inlet actingagainst the fuel to project itvfrom -said casingithrough said discharge outlet, a fuel deflector Vabove the path .of the projected fuel having azportion forward of saiddischarge outlet disposed in the path of the projected fuel, and means supporting thefuel deector from saidisidewalls of-the casing movable to bodily adjust the position of the deector vertically and longitudinally -with respect'to'the path of the projected-fuel, said-means including a plate-like member adjustably movable longitudinally and vertically on each side wall, each plate-like member having a longitudinally extending groove open atan end to receive said deflector.

3. .In a stoker, a fuel discharge casing including upstanding oppositely disposed side walls and having a discharge outlet opening forwardly between said side walls and a-fuelinlet opening upwardly between said side walls rearward of said dischargeoutlet, means delivering fuel upwardly into said casing throughsaid fuel inlet, pressure uid distributing means disposed at the rearward side of said .fuel inlet acting against-the fuel to project it from said casing through said discharge outlet, a fuel defiector above the path of theprojected fuel having a portion forward of -said discharge outlet disposed in the path of thepro- `jected fuel, and .means supporting =the fuel deflector from said sidewalls of the casing-movable to bodily adjust-the position of the deflector vertically and longitudinally Awith respect to the path of the projected fuel, said means including a supporting member movable vertically on each side wall, each supporting member having a longitudinally extending groove open at an end to receive said deflector, the latter being adjustably movable lengthwise in said groove.

4. In a Stoker, a fuel discharge casing including upstandingloppositely disposed side wallsand having a discharge outlet opening forwardly bretween said `side walls and afuel inlet opening upwardly between said side walls rearward of said discharge outlet, means .delivering fuel upwardly into said casing through said fuel inlet, pressure fluid distributing means disposed at the rearward side of said fuel inlet acting against the fuel to project it from said casing through said discharge outlet, a fuel deflector above the path of the projected fuel having a portion forward of said discharge outlet disposed in the path of the projected fuel, and means supporting the fuel deector from said side walls of the casing movable to bodily adjust the position of the delector vertically and longitudinally with respect to the path of the projected fuel, said means including a supporting member movable longitudinally and vertically on each side wall, each supporting member having a longitudinally extending groove open at an end to receive said -deector, the latter being adjustably movable lengthwise in said groove.

5. Inrastoker, a fuel discharge casing including upstanding oppositely disposed side walls and .having adischarge outlet opening forwardlybetween said side walls and a fuel inlet` opening upwardly between said side Walls rear-ward of .said discharge outlet, means'delivering fuel upwardly into said closing through said fuel'inlet, v

pressure fluid distributing means disposed-at the rearward side of said fuel inlet acting against the fuel to project it from said casing through said discharge outlet, a fuel deflector above the pathV of the projected fuel having a portion forward of said discharge outlet disposed-in the path of the projected fuel, and means supporting the fuel deilector from said side walls, said means including a supporting member movable vertically on each side wall, each supporting member having a longitudinally extending groove open at an endto receive said deflector, the latter being -adjustably movable lengthwise in said groove.

6. I-n a stoker, a fuel discharge casing includ- Ving upstanding oppositely disposed side walls and having-a discharge outlet opening forwardly between said side walls and a fuel inlet opening upwardly between said side walls rearward of said discharge outlet, means deliveringfuel upwardly linto said casing through said-fuel inlet, pressure -uid distributing means disposed at the rearward side of said fuel inlet acting against the -fuel to project it from said casing through said discharge outlet, a fuel deflector above the path of the'projected fuel having a portion forward of said discharge outlet disposed in the path of the projected fuel, and means supporting the fuel dellector from said side walls, said means including a supporting member on each side wall, each supporting member having a'longitudinally extending groove open at an end to receive said deflector, the latter being adjustably movable lengthwise in said groove.

7. In a stoker, a fuel discharge casing including upstanding oppositely disposed side walls and having a discharge outlet opening forwardly between said side walls and a fuel inlet opening upwardly between said side walls rearward of said discharge outlet, means delivering fuel upwardly into Ysaid casing through said fuel inlet, pressure fluid distributing means disposed at the rearward side of said fuel inlet acting against the fuel to project it rfrom said casing through said discharge outlet, a fuel deilector above the path of the projected fuel having a portion forward of said discharge outlet disposed in the path of the projected fuel, and means supporting the fuel deflector from said casing, said means including a pair of supporting members each movable vertically on said casing, each supporting member having a longitudinally extending groove open at an end to receive said deector, the latter being adjustably movable lengthwise in said groove.

8. In a Stoker, a fuel discharge casing including upstanding oppositely disposed side walls and having a discharge outlet opening forwardly between said side walls and a fuel inlet opening upwardly between said side walls rearward of said discharge outlet, means delivering fuel upwardly into said casing through said fuel inlet, pressure fluid distributing means disposed at the rearward side of said fuel inlet acting against the fuel to project it from said casing through said discharge outlet, a fuel delector above the path of the projected fuel having a portion forward of said discharge outlet disposed in the path of the projected fuel, and means supporting the fuel deflector from said casing, said means including a pair of supporting members on said casing, each supporting member having a longitudinally extending groove open at an end to receive said delector, the latter being adjustably movable lengthwise in said groove.

9. In a Stoker, a fuel discharge casing including upstanding oppositely disposed side walls and having a discharge outlet opening forwardly between said side walls and a fuel inlet opening upwardly between said side walls rearward of said discharge outlet, means delivering fuel upwardly into said casing through said fuel inlet, pressure fluid distributing means disposed at the rearward side of said fuel inlet acting against the fuel to project it from said casing through said discharge outlet, a fuel deilector above the path of the projected fuel having a portion forward of said discharge outlet disposed in the path of the projected fuel, and means supporting the fuel deflector from said casing, said means being movable to bodily adjust the position of the delector vertically and longitudinally with respect to the path of the projected fuel.

FRANCIS HOGG. 

